ASTROSAT CZTI

Data Quality Report

Orbit 28013

Creation date: 2024-06-27T19:47:01.833841
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_021T08_9000004042_28013cztM0_level2.evt modeM0/AS1A10_021T08_9000004042_28013cztM0_level2_quad_clean.evt
Size (bytes)307,935,36023,679,360
Size293.7 MB 22.6 MB
Events in quadrant A1,580,153125,903
Events in quadrant B1,688,660127,985
Events in quadrant C1,812,967123,054
Events in quadrant D4,025,751112,066

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066210
B069190
C073650
D0141730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3196130.406758%
B3197411.282452%
C3197702.189553%
D319774723.365655%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 3196 3196 0 0 0.00% 0.00%
B 3197 3197 19 19 0.59% 0.59%
C 3197 3197 0 0 0.00% 0.00%
D 3197 3197 672 672 21.02% 21.02%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 13 18327 220.58 402 393 81.3
A 13 254 5528 63.16 402 393 81.3
A 3 137 3945 43.69 402 393 81.3
B 10 245 91236 1164.93 398 389 78.0
B 4 200 16871 211.34 398 389 78.0
B 12 111 9353 114.94 398 389 78.0
C 3 233 235742 2528.75 388 390 93.1
C 14 238 62760 670.14 388 390 93.1
C 13 61 2673 24.53 388 390 93.1
D 1 52 1824866 21086.65 355 346 86.5
D 7 80 311584 3597.09 355 346 86.5
D 8 195 253693 2928.02 355 346 86.5

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter